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Isn't it fun, that's why I am not sure if being called an EMC expert is a good
thing.
Now to the point:
1) Pulling back the Vcc plane away from the edge of the ground plane changes
the distribution of the EM field at the edge. While the strength
Cortland,
The Ansoft URL's pdf comes up nil.
Going to the \thewave\ index doesn't list that .pdf
Would you send me a copy?
- Robert -
On Sun, 27 Nov 2005 20:47:48 -0500
Cortland Richmond 72146@compuserve.com wrote:
Ken Javor wrote
I didn't know what the 20 H rule was
20:47:48 -0500
To: ieee pstc list emc-p...@ieee.org
Subject: Re: Suppression of radiated emissions and spread spectrum clocking
Ken Javor wrote
I didn't know what the 20 H rule was either, just assumed everyone else
did...
See
http://www.qsl.net/wb6tpu/si-list4/0391.html
page 9
Ken Javor wrote
I didn't know what the 20 H rule was either, just assumed everyone else
did...
See
http://www.qsl.net/wb6tpu/si-list4/0391.html
page 9 of http://www.ansoft.com/thewave/Shielding_and_Decoupling.pdf
http://factaee.elfak.ni.ac.yu/fu2k12/fu04.html
and others (search on 20H rule.)
I didn't know what the 20 H rule was either, just assumed everyone else
did...
From: John Woodgate j...@jmwa.demon.co.uk
Date: Sun, 27 Nov 2005 18:49:13 +
To: emc-p...@ieee.org
Subject: Re: Suppression of radiated emissions and spread spectrum clocking
americo...@aol.com wrote
americo...@aol.com wrote (in 26c.a77014.30bb4...@aol.com) about
'Suppression of radiated emissions and spread spectrum clocking', on
Sun, 27 Nov 2005:
Conformity and SI List
I attended an electronic conference where a well-known EMI/EMC
speaker/author stated that the 20 H rule is useless for
Reply to second question only.
In a limited sense it is correct that a spread spectrum clock doesn't decrease
emissions, it spreads them out (in the frequency domain). The spread spectrum
clock decreases the amount of time a signal is within the pass-band of the
receiver, making it appear a
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